The application discloses water pump control system includes, a N interconnect carries out the prediction and calculation operation according to the received current pressure value and obtains and send the operating parameter, according to operation send parameters control signal, when the BACnet controller of receiving authority conversion signal conversion authority state, link to each other with a N BACnet controller one -to -one, receive and organize according to the N frequency conversion hydraulic pump that control signal carries out adjustment operation, link to each other with a N BACnet controller one -to -one, the real -time status who gathers the water supply network obtains and sends a N sensor of current pressure value. This water pump control system need not to increase special main control unit, according to predetermineeing the idiopathetic exchange of carrying out the authority of exchanged mode, according to predetermineeing mechanism conduct main control unit by turns between each controller for each controller holds each other that load carries and pressure, is showing to have reduced operation and maintenance cost, got rid of and lost all pump control power simultaneously and emergence danger status's possibility.